John h



(No Model) J. H. BARTOW.

BELL RINGER.

No. 599,052. I Patented Feb. 15, 1898.

. gm'oa ATTORNEY s,

rm: nanms PETERs ca, PHOTO-Linda. WASNINGYOf D 1,.

UNITED STATES PATENT OFFICE.

JOHN H. BARTOW, OF PATERSON, NEW JERSEY.

BELL-RING ER.

SPECIFICATION forming part of Letters Patent No. 599,052, dated February 15, 1898.

Application filed September 15, 1897. Serial No. 651,771. (No model.)

To all whom it may concern.-

Be it known that I, JOHN H. BARTOW, a citizen of the United States, residing in Paterson, county of. Passaic, and State of New Jersey, have invented certain new and useful Improvementsin Bell-Ringers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of my present invention is to provide a bell-ringer for locomotives and the like of simple, strong, and durable construction, and which bell-ringer is operated by steam or compressed air and is effective and automatic in operation and imparts a uniform motion to the bell-crank without jarring or unnecessary clanging of the bell.

The invention consists in the improved bell-ringer, its plunger-valve, and in the combination and arrangements of the various parts, substantially as will be hereinafter more fully described, and finally embodied in the clauses of the claim.

Referring to the accompanying drawings, in which like letters of reference indicate 4 corresponding parts in each of the several views, Figure 1 is a side elevation of my improved bell-ringer with certain portions broken away and others shown in section to better illustrate the nature of my said invention; Fig. 2, a central sectional view of Fig. 1, partly in elevation, illustrating a different position of the working parts; Fig. 3, a sectional view on the line a: a; of Fig. 1, the valve being moved upward; and Figs. 4: and 5 enlarged detail views of the said valve and its stem.

In the drawings, a represents a cylinder provided on its lower portion with a screwthreaded projection 12, on which is arranged a nut c, by means of which the said cylinder at is removably secured to a bell-frame, as in the usual manner.

In the cylindera is slidinglyarranged a piston or plunger cl, carried by the piston-rod e, which latter is guided in the head f of the said cylinder, and isprovided at its free end I in the drawings.

, On one side of the cylinder at is arranged a valve chamber or chest is, communicating with the lower portion of said cylinder through a port or channel m, and also provided with an inlet '17., entering said valve chamber or chest slightly below the port or channel m. Within said valve-chamber is slidingly arranged a valve-rod o, guided in the stuffing boxesor heads 19 and q, and provided within said chest or valve-chamber with an annularly-reduced portion 0, forming the stem for the valve 0 Said valve,which is cylindricalshaped, is provided on one side with an elongated groove or channel 0 extending through its entire length and adapted to be engaged by a set-screw 0 which latter penetrates the said valve chamber or chest and is-adapted to bear against the annular shoulders of the valve rod 0 in its upward and downward movement. The valve 0 is also provided on t the opposite side from said elongated chan nel with a groove or recess 0 adapted to form a connection or passage at certain stages of the operation between the port or channel m and the exhaust-port 0 which latter is arranged in the valve chamber or chest k, as clearly shown. The valve 0 is also provided with a series of ports 0 and 0 extending from the elongated channel 0 to the outer periphery of said valve and adapted to be brought in alinement or communication with the inlet n, for a purpose hereinafter specified.

On the piston-rod e is adj ustably secured by means of a set-screw r a horizontally-arranged arm r, the free end of which is penetrated by and fits loosely around the upper portion of the valve-rode and is adapted to bear, respectively, against the collars r and r which latter are adjustably arranged on the said valve-rod, the collar 7' by means of a screw rflwhile the collar r which is of flexible material, by means of the nut r engaging the screw-threaded end of the valve-rod 0, all as clearly illustrated in Figs. 1 and 2 of the drawings.

The operation is as follows, the parts being as illustrated in Fig. 1: Compressed air or steam enters through the inlet or into the valve chamber or chest and above the valve through the port or channel m into the cylinder a and below the plunger or piston d. The latter is thus forced upward and the disk or plate g in its upward motion engages the antifriction-rollerh and forces the crank 11 in the direction of the arrow R. In said upward motion of the plungerd the arm r engages the rubber collar r and moves the valve-rod 0 and valve 0 upward into the position illustrated in Fig. 2.. The inlet a is thus closed, (allowing only a small quantity of compressed air or steam to enter through the ports 0 and elongated groove 0 below the said valve to better balance the latter,) while the groove or recess 0 connects the port or channel on with the exhaust 0 thus allowing the spent compressed air or steam to exhaust or escape as soon as the plunger or piston 01 is forced downward by the antifriction-roller h on the bell-crankt' coming into contact with the plate or disk g on the return movement of said crank. The said crank returns into the position illustrated in Fig. 1 by gravity, as will be manifest. downward movement, or when returning to its normal position, forces the valve-rod 0 and valve 0 downward, thus closing the exhaust and opening the inlet 72, when the heretoforedesoribed operation is repeated.

It must be remarked that by means of the nut r and the screw 7' the length of the stroke of the piston-rod and valve-rod can easily be regulated to thus adjust the bellringer to various-sized cranks, and, further, that the valve 0 can be reversed, in which case the ports 0 will communicate with the inlet when the said valve is in its uppermost position.

I do not intend to limit myself to the precise construction shown and described, as various alterations can be made without changing the scope of my invention, but

lVhat I claim as new, and desire to secure by Letters Patent, is-

1. A bell-ringer comprising a cylinder, a plunger and piston-rod slidingly arranged in said cylinder, a striking disk or plate carried by said piston-rod, a valve-chest on one side of said cylinder and communicating through a port or channel with the lower portion thereof, an inlet and an exhaust in said valve-chest, a valve-rod-slidingly arranged in said valvechest, a valve carried by said valve-rod and provided at one side with a vertical elongated channel and at its opposite side with a vertical groove or recess adapted to form a connection between the inlet-channel to the cylinder and the exhaust in the valve-chest, a screw penetrating said valve-chest and engaging The piston or plunger cl in its.

the vertical elongated channel therein, and an arm secured with one end on the pistonrod and vertically adjustable thereon and slid in gly arranged with its other end on the valverod, substantially as and for the purposes described.

2. A bell-ringer comprising a cylinder, a plunger and piston-rod slidingly arranged in said cylinder, a striking disk or plate carried by said piston-rod, a valve-chest on one side of said cylinder and communicating through a port or channel with the lower portion thereof, an inlet and an exhaust in said valve-chest,

a valve-rod slidingly arranged in said valvechest and provided with an an'nularly-reduced portion, a valve on said valve-rod and surrounding its reduced portion and provided on one sidewith an elongated channel and 011 its opposite side with a groove or recess adapted to form a connection between the inlet-port to the cylinder and the exhaust in the valveohest, a screw penetrating said valve-chest and engaging the elongated channel therein, and an arm secured with one end on the piston-rod and vertically adjustable-thereon and slidingly arranged with its other end and the valve-rod, substantially as and for the purposes described.

3. A bell-ringer comprising a cylinder, a plunger and piston-rod slidingly arranged in said cylinder, a striking disk or plate carried by said piston-rod, a valve-chest 011 one side of said cylinder and communicating through a port or channel with the lower portion thereof, aninlet and an exhaust in said valve-chest, a valve-rod slidingly arranged in said valvechest, and provided with an annularly-reduced portion, a cylindrical-shaped valve in terchangeably arranged on said valve-rod and surrounding its reduced portion and provided on one side with an elongated channel, penetrated by ports 0 and 0 in its upper and lower portion respectively and also provided on its opposite side with a groove or recess adapted to form a connection between the inlet-port to the cylinder and the exhaust in the valve-chest, a screw penetrating the valvechest and engaging the elongated channel of the valve, an arm secured with one end on the piston-rod and vertically adjustable thereon and having its other end slidingly arranged on the valve-rod, and two collars adjustably arranged on the valve-rod for limiting the sliding movement of said arm on the valverod to thus regulate the stroke of the piston, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 3d day of September, 1897.

. J OIIN II. BARTOW.

Witnesses:

ALFRED GARTNER, WM. D. BELL. 

